Sildenafil citrate chewing gum formulations and methods of using the same

Patent 6592850 Issued on July 15, 2003. Estimated Expiration Date:

September 19, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

1298670

1629461

2892753

2990328

3011949

3029189

3047461

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Inventors

Assignee

Wm. Wrigley Jr. Company

Application

No. 956445 filed on 09/19/2001

US Classes:

424/48, CHEWING GUM TYPE424/440, Candy, candy coated or chewing gum424/489Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)

Examiners

Primary: Page, Thurman K.
Assistant: Howard, S.

Attorney, Agent or Firm

Bell, Boyd & Lloyd LLC

Foreign Patent References

2001/0036445 Antanikar. 11/13/2012
2002/0012633 Gmunder et al. 01/13/2012
2002/0022057 Battery et al. 02/13/2012
2002/0039560 Ream et al. 04/13/2012
0202819 EP. 11/13/1986
0217109 EP. 04/13/1987
0 221 850 EP. 05/13/1987
0239541 EP. 09/13/1987
0371584 EP. 06/13/1990
0 273 809 EP. 07/13/1998
2345938 FR. 03/13/1976
2 635 441 FR. 02/13/1990
2706771 FR. 06/13/1993
0 934 596 GB. 08/13/1963
0 963 518 GB. 07/13/1964
1 489 832 GB. 10/13/1977
2181646 GB. 04/13/1987
43 42 568 GB. 06/13/1994
01293655 IT. 07/13/1997
02173487 IT. 07/13/1997
91-112450 JP. 09/13/1989
91-251533 JP. 11/13/1991
94-303911 JP. 11/13/1994
96-19370 JP. 01/13/1996
86/242561 JP. 10/13/1996
94-2868 KR. 04/13/1994
84/02271 WO. 06/13/1984
90/12511 WO. 11/13/1990
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92/06680 WO. 04/13/1992
95/00038 WO. 01/13/1995
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International Classes

A61K 009/68
A61K 009/16

Foreign Application Priority Data

1999-12-14 WO

Abstract

Methods and chewing gum formulations for delivering a medicament, namely sildenafil citrate, to an individual are provided. Further, an improved dosage form and method of treating erectile dysfunction are provided. Methods of treating esophageal spasms, dysphagia, and gastroparesis utilizing chewing gum formulations containing sildenafil citrate are also provided.

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